Finding the Fourth Proportional to 11,875.56, 17,816.58 and 3,555.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,875.56 : 17,816.58 = 3,555.96 : x
2. Step 2: Convert to fraction form
   11,875.56/17,816.58 = 3,555.96/x
3. Step 3: Cross multiply
   11,875.56x = 17,816.58 × 3,555.96
4. Step 4: Simplify right side
   11,875.56x = 63,355,045.82
5. Step 5: Solve for x
   x = 63,355,045.82/11,875.56
6. Step 6: Final answer
   x = 5,334.91